Alternative Engine Buyer’s Guide

A look at the non-traditional engine alternatives and PSRUs for homebuilt aircraft.

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In a category called Experimental aircraft youd expect there to be, well, a lot of experimentation. We have the freedom to do our own thing, and it seems a shame to waste it. Such an attitude is no more vividly displayed than with alternative engines for homebuilts. In the last of our yearly Buyer’s Guides, well look at the offerings for homebuilders in this category, which we see as including both tried-and-true auto-engine conversions (and engines both closely and loosely based on auto engines) such as the Volkswagen, as well as some truly alternative, small-volume designs.

AeroVee

As in years past, we have contacted each company for an update on its products, asked for revised pricing, availability and number of engines delivered-notice the terminology, thats delivered, not sold.

Changes for the 2010 guide? Well, we failed to make contact with a few companies, and some said that certain engines were no longer available. For example, despite repeated attempts we could not connect with VairForce, a second company offering Corvair conversions. (Its our policy that companies that cant be bothered to return phone calls or answer emails probably cant support their product.) Among those we did talk to: Powersport is no longer offering the RE-360 rotary; Verner has discontinued the Scarlett radials; Eggenfellner has dropped the E6T and E6-Ti Subarus to concentrate on the standard E6 engine; and Vesta is no longer trying to develop the Chevy 6.6-liter DuraMax diesel.

What are you in for should you select an alternative engine? Depends. Indeed, both your skill level and your ability to work out solutions on the fly will help determine the quality of your installation, as will the development work done by the engine or firewall-forward package (FWF) provider. Its safe to say that not all alternative engines or engine packages are created equal, and just because a supplier says its plug-and-play, that doesn’t mean it really will be.

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Because of the wide range of engine choices, its hard to create solid groupings across the board-groupings that might help you with an apples/apples comparison-but there are a few. The venerable Volkswagen flat-four engine remains a favorite for builders on a tight budget. Its ascendance to popularity came because there are just so many of them in the world; with the right modifications and technical approach, the VW engine can be a reliable, honest little airplane powerplant. Also, because of its configuration, the flat-four Subaru engine remains popular, as does the Corvair opposed-six.

Geared Drives, PSRU clutch view.

From there, the category diversifies, with engines designed from various other off-the-shelf components, including a range of automotive engines. Chevys landmark small-block V-8 is always a popular choice for builders who need high horsepower and desire a V-oriented engine. Whats more, the lure of the rotary engine, most often based on the Mazda-refined Wankel format, continues to be irresistible for builders. A number of companies are producing whole engines as well as providing kits for engines. Along those lines, we also provide a listing of companies that will sell their propeller-speed reduction units (PSRUs) for installation on your own engine choice. (Please note that we’ve listed the Rotax gearboxes for convenience, though technically they’re not supposed to be used on any engine besides a Rotax. The fact that they are available separately from the engines suggests their inclusion here.)

As with all things in the Experimental-aircraft market, the quality of the components and the customer orientation of the companies can vary greatly. Its our strenuous recommendation that you look closely at two data fields we provide here. One is the number of engines delivered. The other is the highest-time engine field. We ask every company to provide these data points, and many decline. When those numbers are small or unavailable, we urge you to step up your research efforts. Insist on contact with actual owners of the engine in question and learn what they like or dislike about the powerplant or firewall-forward package. Do not count on the veracity of online resources ranging from engine-specific bulletin boards to owner testimonials-particularly in the more public forums, the quality of information can be tainted by a small group of malcontents or by a groups fear of retribution by the manufacturer. You might be getting an overly cheerful view of the engine in question, or an overly gloomy one. Reader feedback also suggests that some of the listed availability times might be optimistic. One of the leading complaints appears that vendors over promise on delivery times. If you are the true tinkering type, this wont be a bother or a surprise, but if you’re new to this end of the homebuilt market, you need to be prepared to be flexible.

We do our best to look for new engine designs. If we’ve missed something, please let us know at editorial@kitplanes.com.

Rotary Engines

Mazdas version of the Wankel rotary engine is by far the most common, though there are a few offerings that share little to nothing with the Japanese powerplant. The idea of the Wankel is compelling: Each rotor has three combustion chambers and, overall, the engine works more like a two-stroke in that the power pulses come more frequently than in a four-stroke piston engine. But most interesting is that the Wankel eschews any reciprocating motion, and as such has an almost turbine-like smoothness. The Wankels traditional problems, including the reputation for high fuel consumption, have largely been addressed, and theres nothing like the small size of the powerplant to give builders installation flexibility. All of the current rotary offerings require a PSRU.

Manfacturer
/Model

Base Price Base Power Induction Cooling Dry Weight (lb) No. of Rotors Prop Highest Time Engine (hrs.) Availa-bility Notes
Alturair, alturdyne.com
A650, 100 hp $10,500 100 @ 6000 rpm Carb   100     100 12 weeks 2 delivered.
Global Rotary Power Inc., rotaryengines.ca
GRP-NRR-CA, 40 hp   40 @ 6000 rpm Carb Liquid 38 1     2 weeks Global Rotary has declined to submit prices or offer the number of engines delivered.
GRP-WAG-Fi 1, 40 hp   40 @ 6000 rpm Inj. Liquid 65 1     2 weeks  
GRP-WST-MF-1 65 hp   65 @ 6000 rpm Inj. Liquid 143 1     6-8 weeks  
GRP-WAG-Fi-2, 80 hp   80 @ 6000 rpm Inj. Liquid 115 2     10 weeks  
GRP-WST-MF-2, 130 hp   130 @ 6000 rpm Inj. Liquid 176 2   1500    
GRP-DAFi-13B, 180 hp   180 @ 6000 rpm Inj. Liquid   2     3 weeks  
GRP-DAFi-13BT, 200 hp   200 @ 6000 rpm Inj. Liquid   2     3 weeks Turbo-
charged.
GRP-WST-MF-3, 220 hp   220 @ 6000 rpm Inj. Liquid 220 3   1500 4 weeks  
Mistral Engines, mistral-engines.com
G-200, 200 hp   200 @ 2250 (prop rpm) Inj. Liquid 291 2 Hartzell or MT, 3 blade     FAA and EASA Type certification expected beginning 2011. TBO estimated at 3000 hours.
G-230TS, turbocharged, 230 hp   230 @ 2250 (prop rpm) Inj. Liquid 328 2 Hartzell or MT, 3 blade     In develop-
ment. FAA and EASA Type certification expected 2011.
G-300, 300 hp   300 2 2250 (prop rpm) Inj. Liquid 390 2 Hartzell or MT, 3 blade     FAA and EASA Type certification expected end of 2010.
G-360TS, turbocharged, 360 hp   360 @ 2250 (prop rpm) Inj. Liquid 420 2 Hartzell or MT, 3 blade     In develop-
ment. FAA and EASA Type certification expected 2011.
Powersport Aviation, powersportaviation.com
RE-215 Rotary, 215 hp $24,500 215 @ 2620 (prop rpm) Inj. Liquid 257 2 Fixed or MT 3 blade, electric constant speed 200 12 weeks 9 delivered.
RE-250 Rotary, 250 hp $28,500 250 @ 2700 (prop rpm) Inj. Liquid 257 2 Fixed or MT 3 blade, electric constant speed   12 weeks New porting configuration and injector develop-
ment; no engines sold yet with this porting configu-
ration.

Maxwell Propulsion.

Subaru Engines

Carmaker Subaru has an excellent reputation for powerplant durability, but its perhaps the opposed-cylinder orientation that makes the Subie a viable choice for homebuilts. All current Subaru products are opposed-piston designs of four or six cylinders. All are liquid cooled and electronically fuel injected. Depending on the particular engine chosen, you could get double overhead camshafts or single cams per bank, but all of the current offerings have four valves per cylinder, long a staple of the modern-auto world. Because of their high-revving nature, all Subaru packages currently offered require PSRUs, which has an impact on all-up weight and prop choices. In this category, Eggenfellner has dropped the E6T and the E6-Ti turbocharged models for a single E6, normally aspirated, 200-horsepower engine, and added a conversion for the Honda Fit engine (seen in the Other Engines category). Maxwell, as we said in the February issue, is working hard on a turbocharged version of the single-cam EJ25 engine.

Manufacturer
/Model
Base Price Base Power Induct
-ion
Cooling Dry Wt. (lb) No. of Cyl. Prop. No. Deli-
vered
Highest Time Engine (hrs.) Avail-
ability
Notes
Eggenfellner Aircraft, Inc., eggenfellneraircraft.com
Subaru E6, 200 hp $17,995 200 @ 2700 (prop) Inj. Liquid 370 6 IVO Magnum 140 1100 4 months E6T and E6-Ti models disc-
ontinued. Complete FWF package.
Maxwell Propulsion Systems, Inc., maxwellpropulsion.com
MX1, 165 hp $20,115 165 @ 5200 rpm Inj. Liquid 338 4 MPS CAP 220 14   8 weeks Tuned to use 87 octane mogas. Two-year limited warranty on FWF engine packages including PSRU and propeller, starting at $26,830.
MX2 Stroker, 195 hp $27,000 195 @ 5200 rpm Inj. Liquid 338 4 MPS CAP 220 4   8 weeks Tuned to use 93 octane mogas or 100LL. Two-year limited warranty. FWF engine packages with MPS PSRU upgrade starting at $33,715.
MX3 Turbo, 240 hp $29,100 240 @ 5200 rpm Inj. Liquid 338 4 MPS CAP 220     14 weeks In develop-
ment. Tuned to use 92 octane mogas or 100LL, two-year limited warranty, FWF engine packages with MPS PSRU upgrade starting at $35,850.
RAM Performance Ltd., ramengines.com
Subaru RAM 2.3L SC, 300 hp $21,995 300 @ 2700 (prop rpm) Inj. Liquid 235 4 Prince P-Tip 4 50 3 months  
Subaru RAM 2.3L, 200 hp $15,995 200 @ 2450 (prop rpm) Inj. Liquid 220 4 Prince P-Tip 25 200 8 weeks  
Subaru RAM SC, 140 hp $18,995 140 @ 2500 (prop rpm) Inj. Liquid 188 4 Prince P-Tip 50 300 8 weeks Super-
charged.
Subaru RAM, 115 hp $13,995 115 @ 2500 (prop rpm) Inj. Liquid 176 4 Prince P-Tip 250 1800 8 weeks Includes redrive and motor mounts.
Stratus 2000, stratus2000.homestead.com
EA81, 105 hp $8,995 105 @ 3200 rpm Carb Liquid 200 4 Warp Drive 3-blade, wide chord, ground adjustable 185 1200 2-3 months

 

Vesta V8.

Other Engines

Then theres our catch-all category, one meant to encompass those engines that aren’t easily grouped with others. Here you’ll find everything from a small-block Chevy V-8 to purpose-built aero engines. The Corvair is in here, too, now that were down to just one supplier in the field, the indefatigable William Wynne. In making your decisions, look carefully at the number of engines delivered and all-up weight. Be sure to consider a bit of fudge factor for liquid-cooled engines-some companies list the engine weight with accessories and cooling-system components, while others do not.

Manufac-
turer
/Model
Base Price Base Pwr Induc-
tion
Cool-
ing
Dry
Wt. (lb)
Conf.
*
Prop. No. Delive-
red
High-
est Time Engine (hrs.)
Avail-ability Notes
Eggenfellner Aircraft, Inc., eggenfellneraircraft.com
Honda Fit Conversion, 110 hp $12,995 110 @ 2700 (prop) Inj. Liquid I-4 IVO Medium
FlyCorvair.com, flycorvair.com
FlyCorvair Corvair, 100-130 hp $7,995 100 @ 3200 rpm Carb Air 218-
230
O-6 Wood or comp. 65 500 2 mo. Displace-
ments available from 164-169 cubic inch.
Geared Drives, geareddrives.com
LS Series Aluminum Chevrolet Corvette for RV-10, Bearhawk, Glasair III, other O-540 applica-
tions, 320 hp
$29,900 320 @ 4300 rpm Inj. Liquid 488 V-8 Cust. choice of hydraulic, electric or fixed pitch 5 4-5 mo. Complete FWF package.
LSJ Aluminum Chevrolet, 150-245 hp $29,900 150 @ 4800 rpm Inj. Liquid 470 I-4 Cust. choice of hydraulic, electric or fixed pitch 2 4-5 mo. Aluminum four-cylinder Chevy engine. Complete FWF package.
Hexatron Engineering Co. Inc., hexadyneaviation.com
Hexadyne P60 Champ, 60 hp $8,800 60 @ 5750 rpm Inj. Air 94 I-3 Warp drive, Powerfin, Kiev, fixed or adjust. 48 1800 1 wk. Four aircraft flying.
Powerplant Developments-USA, Inc., ppdgemini.com
Gemini 100, 100 hp $18,000 100 @ 2500 rpm 155 I-3 Est April 2011 Still in develop-
ment. Three-cylinder, six-piston compres-
sion-ignition design developed for LSA market.
Raven ReDrives, raven-rotor.com
1000 UL, UL-T, ULRS-T Turbo, 80 hp $7,850 80 @ 5700 rpm Inj. Liquid 152 I-3 Ivoprop, Powerfin, GSC, wood 15 500 2-3 wks. Price includes complete engine package.
1000 ULDD, 38 hp $4,975 38 @ 3400 rpm Carb Liquid 93 I-3 2 blade wood 1 10 3-4 wks. Price includes complete engine package.
1000 ULRS, ULRS-T, 60 hp $5,996 60 @ 5700 rpm Inj. Liquid 140 I-3 Ivoprop, Powerfin, GSC, wood 24 650 2-3 wks. Price includes complete engine package.
1000 ULX, UL, UL-T, 60 hp $5,749 60 @ 5700 rpm Inj. Liquid 130-
138
I-3 Ivoprop, Powerfin, GSC, wood 236 1000 4-6 wks. Price includes complete engine package.
1300 SV/1300 SVS Turbo, 115 hp $11,495 115 @ 5700 rpm Inj. Liquid 195-
205
I-4 Ivoprop, Powerfin, GSC, wood 8 50 4-6 wks.
1300 SV/1300 SVS, 90 hp $8,595 90 @ 5700 rpm Inj. Liquid 175-
185
I-4 Ivoprop, Powerfin, GSC, wood 38 250 4-6 wks. Price includes complete engine package.
Trace Engines, traceengines.com
OE-600, 600 hp $200,000 600 @ 4400 rpm Inj. Liquid 600 V-8 McCauley 2 1300 Immed. FAA Type and Production certified.
Valley Engineering, culverprops.com
Big Twin 992 4-stroke, 40 hp $4,995 40 @ 3600 rpm Carb Air 110 V-2 Culver two-blade wood prop included. 45 350 2 wks. Price includes electric start, PSRU, prop and exhaust.
VE 85, 85 hp $7,500 85 @ 3800 rpm Carb Air 180 H-4 Culver two-blade wood prop included. 4 100 1 mo. Price includes Diehl case, electric start, PSRU and prop.
VE 100, 100 hp $9,995 100 @ 3800 rpm Carb Air 185 H-4 Culver two-blade wood prop included. 40 750 1 mo. Price includes Diehl case, electric start, PSRU and prop.
Verner Light Aircraft Engines, flydiver.com
Verner JCV-360, 38 hp $8,275 38 @ 7500 rpm Carb Liquid 57 O-2 52 inch 2 8-12 wks.
VM133MK, 84 hp $9,900 84 @ 5500 rpm Carb Air 134 O-2 68-72 inch 5700 2500 8-12 wks. Based on BMW motorcycle cylinder assemblies. Fuel injection to be available 1Q10.
Vesta, Inc., vestaV8.com
Chevy 572 Big Block, 550 hp $26,900 550 @ 4500 rpm Inj. Liquid 780 V-8 Vesta HT 84-102 4 mo.
Ecotec 2.2L-2.4L, 160-200 hp $11,900 160 @ 5000 rpm Inj. Liquid 300 I-4 Vesta GT2, GT3 68-78, LT2 80-83. 4 mo. Up to 200 hp @ 5400 rpm available.
Honda 3.5L-3.7L V-6, 240-310 hp $13,900 240 @ 5000 rpm Inj. Liquid 340 V-6 Vesta GT2, GT3, GT4 68-78, LT4 80-83, VP3-82, VP4 70-82 4 mo. Up to 310 hp @ 4800 rpm available. FADEC controlled.
LS3-376 V-8, 380-430 hp $15,000 380 @ 4500 rpm Inj. Liquid 460 V-8 Vesta HT3, HT4 76-84, RT3, RT4 89-92, HT3 84-102, VP3 82, VP4 70-82. 4 mo. Up to 430 hp @ 4800 rpm available. FADEC controlled.
* Configuration key: I-3, inline three cylinder; I-4, inline four cylinder; V-8, V-arrayed eight cylinder; V-6, V-arrayed six cylinder; O-4, opposed four cylinder; O-6, opposed six cylinder.

 

Volkswagen Engines

The opposed-four-cylinder Volkswagen engines share some major characteristics, though the development of the breed as aero engines has led to a number of modifications and novel solutions. Youll find the Vee-Dub engine as both air- and liquid-cooled, though air cooling is by far the most common choice. A variety of displacements are available, and you’ll find them as both direct-drive and with various PSRUs. The trade-offs are well-known. A geared engine can turn faster and make more power for a given displacement, but the cost is weight and complexity. Direct-drive versions are simpler and, usually, lighter, but they have certain prop limitations. While all VW-based packages are four-stroke designs, there are many, many variations of internal components, accessories and horsepower ranges.

Manufacturer/Model Base Price Base Power Induction Cooling Dry Weight (lb) Propeller No. Delive-red Highest Time Engine (hrs.) Availability
AeroConversions, aeroconversions.com
AeroVee 2.1, 80 hp $6,495 80 @ 3400 rpm TBI Air 161 Fixed pitch wood or comp. 463 1000 4-6 weeks
Great Plains Aircraft Supply Co., greatplainsas.com
1600cc VW Direct Drive, 50 hp $3,400 50 @ 3400 rpm Carb Air 145-164 Wood 23 1800 Immediate
1835cc VW Direct Drive, 60 hp $3,900 60 @ 3400 rpm Carb Air 145-162 Wood 105 1800 Immediate
1915cc VW Reduction Drive, 80 hp $4,900 80 @ 4200 rpm Carb Air 178 Wood 21 175 Immediate
2180cc VW Direct Drive, 76 hp $4,500 76 @ 3400 rpm Carb Liquid 165 Wood 1800+ 2500 Immediate
2180cc VW Flywheel Drive, 80 hp $6,000 80 @ 3400 rpm Carb Air 185 Wood 37   Immediate
2180cc VW Redrive, 103 hp $5,500 103 @ 4200 rpm Carb Air 188 Wood or comp. 37 175 Immediate
Hummel Engines, hummelengines.com
Hummel 2- & 4-Cylinder VW, 28-85 hp $3,700 28 @ 3000 rpm Carb Air 80-167 54×20 to 62×32 400+ 1200 4-6 weeks
Revmaster Aviation, revmasteraviation.com
R2100-D, 75 hp $6,800 75 @ 3200 rpm Carb Air 175 Standard fixed, oil controls 3370 2000 1-2 months
R2200-D, 100 hp $6,800 100 @ 3250 rpm Carb Air   Standard fixed, oil controls      
R3000-D, 110 hp*   110 @ 3200 rpm Carb Air 205 Fixed pitch 8    
* Note: In development; prototype engines only delivered.

 

PSRUs

Finally, prop-speed reduction units. Many FWF providers will sell a PSRU separately for an engine installation of your own design, while other companies specialize in just PSRUs. As always, contact the company directly to understand if the engine you propose to install will mate with any given PSRU.

Manufacturer Model Price Type Ratio Max Engine Power Weight (lb) Propeller Notes
Alturair, alturdyne.com A650 PR $6,495 Gear, Planetary 3:01 100 35    
American Rotary Engines, rotaryengine.com   $6,500 Gear, Straight 2.29:1, 2.39:1 300 55 No hydraulic pitch governor; electric only 6 delivered, 2-3 weeks shipping time.
Belted Air Power, beltedair.com   $5,600 Belt 1.43:1 260 48 74 inch, 35 lb. 200+ delivered, 2 weeks shipping time.
Compact Radial Engines, compactradial
engines.com
RZ Gearbox $1,580 Helical Gear Five availa-
ble
130 28   800 delivered, 2 weeks shipping time if not in stock.
Eggenfellner Aircraft, Inc., eggenfellner
aircraft.com
  $4,495 Gear (Unspecified) 2.01:1 200 38 Wood or composite propeller 500+ delivered, immediate shipping time.
Geared Drives, geareddrives.com   $9,500 Spur Gear 1.616:1, 1.72:1 400 63 Customers choice of fixed-pitch, hydraulic or electric New CNC case costs extra. 20 delivered, 120-180 days shipping time.
Global Rotary Power Inc., rotaryengines.ca   $1,370 Belt 2:1, 3:1 80 14    
Great Plains Aircraft Supply Co., greatplainsas.com Valley Series 3 $1,595 Belt 1.6:1, 2.0:1, 2.47:1 105 17 Wood 96 delivered, immediate shipping time.
  Valley Series 3 $1,595 Belt 1.6:1, 2.0:1, 2.47:1 120 17 Wood or composite 101 delivered, immediate shipping time.
Maxwell Propulsion Systems, Inc.,
maxwell
propulsion.com
Autoflite $3,800 Helical Gear 1.9:1, 2.2:1, 2.4:1, 2.9:1 300 38-58 Reverse rotation, tractor or pusher, recommend CAP-220 Dealer for Autoflite PSRU, 8 weeks shipping time.
    $8,950 Helical Gear 2.13:1 300 72 Reverse rotation, tractor or pusher, recommend CAP-220 13 delivered, 8 weeks shipping time.
Powersport Aviation, powersport
aviation.com
  $6,495 Straight Gear 2.29:1, 2.39:1, 3:1 300 57 Standard prop rotation 12 delivered, 4-12 weeks shipping time; three-rotor engines must use special torsional pulley.
RAM Performance Ltd., ramengines.com   $3,600 Helical Gear 1.9:1, 2.1:1, 2.47:1, 2.9:1 160 36 72 inch 50 delivered, 2 months shipping time.
    $3,895 Helical Gear 1.9:1, 2.1:1, 2.47:1, 2.9:1 200 38 72 inch 2 delivered, 2 months shipping time.
    $4,100 Helical Gear 1.9:1, 2.1:1, 2.47:1, 2.9:1 300 42 80 inch 4 delivered, 2 months shipping time.
Raven ReDrives,
raven-rotor.com
1000ULDD for Geo three cylinder $1,295     38 95 Two-blade, wood Conversion kit for direct-drive 38 hp, 95 lb. 1 delivered, 3-4 weeks shipping time.
  1000ULRS-T for Geo three cylinder $2,695 Belt 2.26:1 80 19 Ivo, Powerfin, GSC, wood 34 delivered, 3-4 weeks shipping time.
  1000ULX, UL, UL-T for Geo three cylinder $2,295 Belt 2.26:1 80 17 Ivo, Powerfin, GSC, wood 236 delivered, 3-4 weeks shipping time.
  1300SV, 1300 SVS for Geo three cylinder $3,595 Belt 2.26:1 120 17-22 Ivo, Powerfin, GSC, wood 38 delivered, 3-4 weeks shipping time.
Real World Solutions, rotaryaviation.com RD-1B $3,315 Planetary Gear 2.176:1 300 44 Fixed-pitch or electric constant speed. No length or weight limitations. Drive approved for recreational type aerobatics. 69 delivered, 6-8 weeks shipping time.
  RD-1C $3,315 Planetary Gear 2.85:1 300 44 Fixed-pitch or electric constant speed. No length or weight limitations. Drive approved for recreational type aerobatics. 102 delivered, 6-8 weeks shipping time.
Recreational Power Engineering, recpower.com Cogbelt Re-Drive $1,550 Belt 2.6:1 70 15 Prop up to 72 inch 40 delivered, 3-4 weeks shipping time.
  G-40 $1,665 Helical Gear 2.03:1, 2.25:1, 2.46:1, 2.79:1. 2.96:1, 3.33:1, 3.79:1 120 24 Prop up to 76 inch 550 delivered, 3-4 weeks shipping time.
  G-50 $1,465 Helical Gear 2.03:1, 2.25:1, 2.46:1, 2.96:1, 3.33:1, 3.79:1 100 19   1750 delivered, immediate shipping time.
Rotax,
rotax.com
B Gearbox   Helical Gear 2.0:1, 2.24:1, 2.58:1 64 10 Limitation of 3000 kg/cm2 5000+ delivered, immediate shipping time.
  C Gearbox   Helical Gear 2.62:1, 3:1, 3.47:1, 4:1 75 18 Limitation of 6000 kg/cm2 5500+ delivered, immediate shipping time.
  E Gearbox with integrated E/S   Helical Gear 2.62:1, 3:1, 3.47:1, 4:1 75 25 Limitation of 6000 kg/cm2 5500+ delivered, immediate shipping time.
Stratus 2000,
stratus2000.
homestead.com
EA81 Subaru $3,000 Belt 2.2:1 125 45 Any SAE #1 bolt pattern 195 PSRUs delivered, 1 week shipping time.
Valley Engineering, culverprops.com V-Twin $1,295 Belt 1.61:1 – 2.92:1 50 6 Recommend Culver wood two-blade 25 delivered, 3 weeks shipping time.
  VW Type One $1,595 Belt 1.61:1 – 2.92:1 120 8 Recommend Culver wood two-blade 250 delivered, 3 weeks shipping time.
Vesta Inc., vestaV8.com   $3,500 Chain 1:1 – 3.1:1 600 45-100 Manufactured for Vesta propellers Five chain widths available (1.0, 1.5, 2.0, 3.0 and 4.0 inch). Supports hydraulic governor.

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